1 /* 2 * Copyright (C) 2012 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 #include <errno.h> 17 #include <malloc.h> 18 #include <string.h> 19 20 #include <cutils/log.h> 21 #include <hardware/hardware.h> 22 #include <hardware/nfc.h> 23 24 25 /* 26 * NCI HAL method implementations. These must be overriden 27 */ 28 static int hal_open(const struct nfc_nci_device *dev, 29 nfc_stack_callback_t *p_cback, nfc_stack_data_callback_t *p_data_cback) { 30 ALOGE("NFC-NCI HAL: %s", __FUNCTION__); 31 return 0; 32 } 33 34 static int hal_write(const struct nfc_nci_device *dev, 35 uint16_t data_len, const uint8_t *p_data) { 36 ALOGE("NFC-NCI HAL: %s", __FUNCTION__); 37 return 0; 38 } 39 40 static int hal_core_initialized(const struct nfc_nci_device *dev, 41 uint8_t* p_core_init_rsp_params) { 42 ALOGE("NFC-NCI HAL: %s", __FUNCTION__); 43 return 0; 44 } 45 46 static int hal_pre_discover(const struct nfc_nci_device *dev) { 47 ALOGE("NFC-NCI HAL: %s", __FUNCTION__); 48 return 0; 49 } 50 51 static int hal_close(const struct nfc_nci_device *dev) { 52 ALOGE("NFC-NCI HAL: %s", __FUNCTION__); 53 return 0; 54 } 55 56 static int hal_control_granted (const struct nfc_nci_device *p_dev) 57 { 58 ALOGE("NFC-NCI HAL: %s", __FUNCTION__); 59 return 0; 60 } 61 62 63 static int hal_power_cycle (const struct nfc_nci_device *p_dev) 64 { 65 ALOGE("NFC-NCI HAL: %s", __FUNCTION__); 66 return 0; 67 } 68 69 /* 70 * Generic device handling below - can generally be left unchanged. 71 */ 72 /* Close an opened nfc device instance */ 73 static int nfc_close(hw_device_t *dev) { 74 free(dev); 75 return 0; 76 } 77 78 static int nfc_open(const hw_module_t* module, const char* name, 79 hw_device_t** device) { 80 if (strcmp(name, NFC_NCI_CONTROLLER) == 0) { 81 nfc_nci_device_t *dev = calloc(1, sizeof(nfc_nci_device_t)); 82 83 dev->common.tag = HARDWARE_DEVICE_TAG; 84 dev->common.version = 0x00010000; // [31:16] major, [15:0] minor 85 dev->common.module = (struct hw_module_t*) module; 86 dev->common.close = nfc_close; 87 88 // NCI HAL method pointers 89 dev->open = hal_open; 90 dev->write = hal_write; 91 dev->core_initialized = hal_core_initialized; 92 dev->pre_discover = hal_pre_discover; 93 dev->close = hal_close; 94 dev->control_granted = hal_control_granted; 95 dev->power_cycle = hal_power_cycle; 96 97 *device = (hw_device_t*) dev; 98 99 return 0; 100 } else { 101 return -EINVAL; 102 } 103 } 104 105 106 static struct hw_module_methods_t nfc_module_methods = { 107 .open = nfc_open, 108 }; 109 110 struct nfc_nci_module_t HAL_MODULE_INFO_SYM = { 111 .common = { 112 .tag = HARDWARE_MODULE_TAG, 113 .module_api_version = 0x0100, // [15:8] major, [7:0] minor (1.0) 114 .hal_api_version = 0x00, // 0 is only valid value 115 .id = NFC_NCI_HARDWARE_MODULE_ID, 116 .name = "Default NFC NCI HW HAL", 117 .author = "The Android Open Source Project", 118 .methods = &nfc_module_methods, 119 }, 120 }; 121
